Armature winding machine



July 24, 1951 E. w. coLLlNs ARMATURE WINDING MACHINE 11 Sheets-Sheet 2 Filed April 10, 1948 July 24, 1,951 E. w. coLLlNs 2,561,562

ARMATURE wmnmf; MACHINE Fil'ed April 10, 1948 ll sheets-sheet 5 /aJA IN V EN TOR.

July 24, 1951 E. w. coLLlNs ARMATURE WINDING MACHINE Filled April 1o, 1948 1l Sheets-Sheet 4 July 24, 1951 E. w. coLLlNs 2,561,562

ARMATURE WINDNG MACHINE Filed April 10, 1948 ll Sheets-Sheet 5 IN V EN TOR.

MY 24, 1951 E. w. coLLlNs 2,561,562

ARMATURE WINDING MACHINE Filed April 10, 1948 11 Sheets-Sheet 6 E. W. COLLINS ARMATURE WINDING MACHINE July 24, 1951 11 Sheets-Sheet 7 Filed April l0, 1948 U 8kg/ JNVENTOR. M Wm July 24, 1951 E. w. coLLlNs 2,561,562

ARMATURE wxNnING MACHINE Filed April 10, 1948 11 Sheets-Sheet 8 ,A I A l July 24, v1951 l E. w. cQLLlNs 2,561,562

July 24, 1951 E. oLuNs 2,561,562

ARMATUR DING MACHINE Filed April l0, 1948 11 Sheets-Sheet 10 July 24, 1951 E. w. com ms 2,561,562

ARMATURE WINDING MACHINE Filed April l0, 1948 1l Sheets-Sheet 11 y 2a @y 27 IN V EN TOR.

Patented July 24, 1951 ARMATURE WINDING MACHINE Edward W. Collins, Anderson, Ind., assignor to General Motors Corporation, Detroit, Mich., a

corporation of Delaware Application April 10, 1948, Serial No. 20.325

Claims. (Cl. 242-13) This invention relates to machines for winding armatures.

An object of the invention is to provide a machine which will thread wires into. the slots of an amature core simultaneously. In the disclosed embodiment of the invention this object is accomplished by the use of a stationary wire placing device into which there pass a plurality of wires from a plurality of reels and a carriage or shuttle which supports two armature cores whereby the winding of one armature core can take place while the core that has been wound can be removed and replaced by an empty core onto which wires from the wound armature are passed and thereby anchored on the fresh core before the end leads of the wound armature coils are severed.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings wherein a preferred embodiment of the present invention is clearly shown.

In the drawings:

Figs. 1 and 2 together form a side elevation of the machine.

Fig. 3 is a view in the direction of arrow 3 of Fig. 1.

Fig. 4 is a fragmentary sectional view on line 4-4 of Fig. 3.

Figs. 5 and 6 are plan and side views respectively of a wire anchoring device which is placed on the shaft of an armature which is the first oi' a series to be wound by the machine.

Fig. 7 is a view in the direction of arrow 1 of Fis. 8.

Fig. 8 is a sectional view on line 8-8 of Fig. l.

Fig. 9 is a sectional view on line 9-9 oi Fig. 1.

Fig. 10 is a sectional view on line |0|0 of Fis. 11.

Fig. 11 is a view of the stationary wire placing device looking in the direction of arrow of Fig. 1.

Fig. 12 is a view in the direction of arrows l2 of Figs. 2 and 10..

Fig. 13 is a view on line I 3-I 3 of Fig. 10, a portion of the wire placer having been removed.

Figs. 14, 15 and 16 are perspective views showing the operation of the machine.

Figs. 17 and 19 together form a side elevation of the spool rack with spools thereon and a diagrammatic representation of the wires which pass from the wire reels to the wire placer.

Fig. 18 is a sectional view on the line |8|8 of Fig. 17.

Fig. 20 is a sectional view on an enlarged scale of a guide |33, the section being on line 2li-20 0f Fig. 13.

Fig. 21 is a sectional view on line 2|-2| oi' Fig. 20.

Fig. 22 is a view in the direction of arrow 22 of Fig. 20.

Fig. 23 is a like view on enlarged scale of a shoe |48 or |41 shown in Fig. 10.

Fig. 24 is a view in the direction of arrow I24 of Fig. 23.

Fig. 25 is a sectional view on line 25-25 of Fig. 23.

Figs. 26-35 are views on enlarged scale showing steps of making a guide shoe |39. Figs. 26 and 27 are side and end views respectively of one of the two longer rods which are used to make the shoe |39. Figs. 28 and 29 are side and end views respectively oi.' one of two shorter rods which are used to make the shoe |39. Figs. 30 and 31 are plan and end views respectively of a welded assembly of the two larger and the two shorter rods. Figs. 32 and 33 are `side and end views of the welded assembly after cutting o certain portions. Figs. 34 and 35 ar side and end views respectively of the shoe |39 before attachment to the guide |33.

Referring to Figs. 1 to 3 leg frames 20 and 2| support plates 22 and 23 respectively which support bars '25 and 25 (Fig. 9) that provide a track for a carriage or shuttle which includes bars 21 and 25 carrying pins 29 supporting rollers 30 which engage the bars 21 and 28 which are attached to two spacer blocks 3| and 32 which support bearing brackets 33 and 34 respectively. Brackets 33 and 34 are attached by pins -35 and 36, respectively, to lugs I1 and 38 respectively of plates 39 and 40, respectively, hingedly connected by pins 4| and 42, respectively, with hinge plates 43 and 44, respectively, Awhich are attached to the ends of the bars 21 and 28. Pin 35 (Fig. 3) passes through ears 33a of bracket 33 and is pinned thereto (Fig. 3). Pin 38 passes through ears 34a of the bracket 34 and is pinned thereto.

Bracket y33 (Figs. 1 and 9) is connected by pin 5| -with a bearing cap 53 retained by a nut 55 threadedly engaging a screw eye 51 Iwhich receives a pin 59 attached to the bracket 33. By loosening the screw 55 the screw eye 51 can be turned counterclockwise to free the cap 53. Bracket 33 and cap 53 provide a bearing for rotatable armature shaft receiving chuck comprising a tubular shaft 8| which a key 93 and a nut (threaded on shaft 5|) attach to the hub 81 of a lever 89. Shaft 8| is slotted at 1| and receives a screw 18 whereby an armature shaft received within the bore 15 of the shaft 5| can be clamped by tightening the screw 18. The armature shaft is marked SI in Fig. 1 and supports a core CI. The movement of the handle 89 is limited by stops 11 and 19 supported respectively by brackets 8| and 88 attached to plate 89 (Fig. 3). Bracket 88 is notched to receive a bar 85 pivoted on a pin 81 and having a core locating blade 89 to be received by the space between core teeth. Before tightening the screw 18 the core is turned so that it can receive the blade 89 thereby locating the core correctly with respect to the shaft 8|. The shaft 8| and the supported armature are located correctly with respect to the wire threader to be described when the lever 89 is in engagement with one of the stops 11,19.

'Ihe construction of the parts supported by brackets 84 (Fig. 2) is similar to those supported by bracket 88 and corresponding parts supported .by bracket 84 are designated by reference numbers one higher than the numbers applied to parts supported by bracket 88. For example, Fig. 2 shows bearing cap 54, nut 88, screw eye 58, shaft 52, pin 88, bar 85 with its blade 90, lever hub 68 of lever 10 which swings between stops provided by brackets 82 and 84. Shaft S2 supports core C2 and is fixed to shaft 82. Caps 58 and 54 are removable to permit substitution of tubular shafts 8| and 82 which are adapted to receive and chuck armature shafts of other diameters.

Screws 98 and 94 respectively pass through spacers 8| and 82 respectively and are engaged by nuts 95 and 98 respectively which retain washers 91 and 98 respectively to which are attached the ends of a chain which passes around sprockets |0| and |02 respectively fixed to shafts |08 and |04 respectively which support the hubs of levers |05 and |08 respectively connectible with the shafts by clutches |01 and |08 respectively. Shaft |08, for example. is supported by brackets |081) which screws |08a attach to a plate |08c attached to rails 25 and 28 (Fig. 9). By the use of either of levers |08, |01 the shuttle can be moved along its track. When a lever |05 or |08 is not in use it is disconnected from the shaft which supports it. Lever |05, for example, is retained on shaft |08 by a washer |05a retained by a screw |05b. When winding the core CI the movement of the shuttle is determined by stops ||8 and engageable with a plate ||1 attached to shuttle bar 28. When the bar ||1 is located at ||1' (Fig. 1) the core C| will be in the position represented by the dot-dash rectangle X (Fig. 2). When the shuttle moves left until the bar ||1 engages the stop ||8,-the core will be located in the position represented by the dot-dash rectangle Y (Fig. 1). For winding the core C2 the movement of the shuttle is limited by the engagement of the plate ||1 with stops ||4 and ||5. When the plate ||1 engages the left side of stop |8 the core C2 will be located in the position represented by the rectangle X and when the plate ||1 at position ||1 engages the right side of stop ||4 the core C2 will be in the position represented by rectangle Y. The stops ||8, ||4, ||5 and ||5 are levers which are attached to a shaft supported by brackets |2| and |22 attached to frames 20 and 2| respectively. Washers |28 and |24 pinned to the shaft |20 prevent endwise movement thereof. The shaft |20 is turned by knurled discs |25, |28 attached to the ends of the shaft.' In order to locate the plate ||1 between 4 the stops ||8, ||8 or between the stops ||4, ||8, the shaft |20 is turned so that the stops willclear the plate and the shuttle is then moved to position the plate ||1 between end pair of stops.

Referring to Figs. 10 to 13 the wire placer includes a rectangular plate attached to brackets |8| (Figs. 2 and 14) which are supported by the track rails 25 and 28. Plate |80 has an annular boss |82 (Fig. 13) which is radially notched to receive wire guides |88 each having a washer-receiving recess |84 whereby the guides |88 are attached in pairs to the ring |82 by washers |85 and screws |88. Each guide |88 has an elongated orifice |81 which merges with a restricted orifice |88 in a shoe |89 said orifice ilaring out at |40 at the end of the shoe (also Figs. 20 and 21). The shoes |89 are welded to the wire guides. Each shoe is adapted to nt into the space or core slot between armature core teeth. Screws |42a (Fig. l2) and screws |48a (Fig. 11) attach rings |42 and |48, respectively, to plate |80. Rings |42 and |48, respectively, retain rotatable rings |44 and |45 each having a plurality of radially arranged wire retaining shoes |48 and |41 respectively. Each ring |44, |45 is made of the parts whichare notched to receive the shanks |48a (Figs. 23 and 24) of shoes |48. When an armature core is at position Y (Fig. l) its core teeth will be at the left of the shoes |88 as viewed in Fig. 1 or to the right as viewed in Fig. 13 but the core teeth will still receive the shoes |41 which serve to retain the windings in position when not engaged by the shoes |89. When a core is at position X (Fig. 2) the core will be to the right of the shoes |89 as viewed in Fig. 2 and to the left as viewed in Fig. 10, but the core will still receive the shoes |48 which serve to retain the windings in position when not engaged by the shoes |88. During the indexing of the core by turning a lever 89 or 10 when the cores are in positions X or Y the rings |44 or |45 will turn with the core.

Referring to Figs. 17 and 19 the reel support |58 comprises a plurality of horizontal bars |5| and vertical bars |52 welded together and supported by a base |58 which rests on the door. The bars support wire reels or spools. For example, one of the bars such as |5| (Fig. 18) supports a tube |55 secured by a set screw |58 and supporting two reels Rl and Rr located on the left and right side respectively of the bar |5|.

Figs. 17 and 19 show the reels on the left front side or left side (Fig. 18) of the reel support. As shown in the drawings there are 54 reels on each side of the support totaling 108 reels which will supply 108 wires for supplying six wires each for 18 coils to be wound simultaneously on the armature core in case it is provided with 18 slots. The three reels which supply wires for coil #1, for example, are marked Ri and the wires extending therefrom are represented by a single line extending from the right hand RI upwardly to the wire placer. This single line is marked 3/1 meaning that there are three wires for coil #1 provided by the reels on the front side of the reel support. The reels on the rear side of the support which are behind reels RI also supply three wires for the coil #1. Similar markings are placed on the other reels and the wires leading therefrom to the wire placer.

The wire placer shown in Figs. 10 to 16 is constructed for winding a 14 slot core.

Fig. 14 shows a step in the winding of core CI having |4 slots and requiring 4 wires for each of the 14 G9118. The winding of a series of cores starts with full wire spools. The wires from these spools are threaded through the wire guides of the wire placer and are anchored to the armature shaft by means of the device shown in Figs. and 6. This wiring anchoring device has a disc |60 having a. central hole |6| received by the armature shaft and having notches |32 respectively receiving the wires from the wire guides |33 and shoes |33. After the wires have been placed in these slots they are twisted together so that they will be anchored by the disc 60. 1n winding a core CI (Fig: 14) the core moves first toward the right to position X to place the first pass of wires in its slots. Then the core is rotated counterclockwise and is moved to the left to position Y. The core is rotated clockwise and is moved to the right to position X. Finally the core is rotated counterclockwise and is moved to the left to position Y; and as shown in Fig. 14, the winding ends with lever 63 at the end of its counterclockwise movement. During the winding of core CI `the plate ||1 has been moved between the stops ||3 and H5. After winding the core Cl as shown in Fig. 14 the shaft |20 is rotated clockwise to free all its stops from the plate ||1 and the shuttle is moved into the position shown in Fig. 15, thereby causing the end leads of the coils of core Ci to be passed through the slots of the core C2. The shaft |20 has been rotated counterclockwise to place the stops |4 and ||3 in position for engagement by the plate ||1 which in Fig. 15 engages the right side of stop ||4. The wires having been passed through slots oi' core C2 they are now anchored. Therefore the wires extending from the end leads extending on core CI can be severed. After severing these wires the bracket 33 is turned into the position shown in Fig. 16 thereby locating the wound core for removal 'and replacement by an unwound core. The start leads of the coils on core C2 are tied together by a band |65 then the winding of the core C2 continues until completed and its end leads are caused to be placed in the slots of the unwound core then supported by the bracket 33.

The wires which pass through the two lowest wire guides |33 (Fig. 13) are guided by a pair oi reels supported by a bracket |1| supported by one of the horizontal bars |5| of the reel support.

The shoes |39 of the wire guide |33 shown on a larger scale in Figs. 20-22 are each constructed in the following manner. Two rods 200 (Figs. 26, 27) each having fiat surfaces 20| and cylindrical surfaces 202 are assembled with two rods 203 (Figs. 28, 29) having fiat surfaces 204; and these parts are united by brazing as shown in Figs. 30 and 31. This assembly is machined to the dot-dash lines to make the part shown in Figs. 32 and 33. This completed shoe is shown in Figs. 34 and 35. In has groove surfaces |33a which meet at lines |33. The surfaces defining the restriction |38 and flare |40 are provided by the cylindrical surfaces of the rods 200 and 203 designated respectively by circles 200x and 203x. The shoes |33 Aare united with the guides |33 by brazing. f

The shoes |46 are shaped as shown in Figs. 23-25. Each has a shank |46a and converging surfaces |4b which enter into the space between adjacent core teeth near the periphery of the armature core and the shoe engages the wires placed in the core slot, as the shuttle moves the core through the wire placer. Shoes |41 are made like shoes |43.

After a pass of the core from right to left (Figs. 1-2), which locate the core at position Y, the core and shoes |41 are rotated together and the right coil end portions are ready to be placed against the right end of the core, said portion being between the shoes |41 and the core axis and being between the shoes '|41 and the wire guide shoes |33. During a pass of the core through the wire placer from left to right, the

core receives the shoes |39 and the coil-end-portions are placed against the right core-end. Before the core'leaves the shoes |41 it receives the shoes |46 which are over the coil-active-sides when the pass ends and the core is located at position X (Fig. 2) with the shoes |46 just inside the left end portions of the core slots. Then the core and the shoes |46 are rotated together and the left coil end portions are ready to `be placed against the core, said portions being between the shoes |46 and the core axis and between the shoes |46 and the wire guiding shoes |39. During a pass of the core through the wire placer from right to left, the core receives the shoes |39 and the right coil end-portions are placed against the right core-end. Before the core leaves the shoes |46 it receives the shoes |41, which are4 over the coil-active-side, when the pass ends and the core is located at position Y (Fig. l). During the winding of a core at least one of the shoes |46, |41 is always in a core slot to pack down the wires of the coil-activeside and to retain the Wires during indexing of the core.

While the embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow. v

What is claimed is as follows:

1. A machine for winding wires into slots of armature cores assembled with shafts comprising a fixed wire placer having a plurality of shoes arranged in a circular row and each adapted to be received by a core slot and each having a passage receiving wires from supply spools, a shuttle, two bearing brackets supported by the shuttle on opposite sides of the wire placer, two rotatable chucks for receiving armature shafts and respectively journalled in the bearing brackets means for moving the shuttle to pass one core at a time through the row of wire placing shoes, levers respectively for rotating the chucks a predetermined amount between passes of a core through the coil placer, means respectively operating to limit shuttle movement to the ranges of movement respectively required for winding the armature cores supported by the brackets a member which is temporarily a part of the machine and provides for the initial anchoring of the ends of the wires which pass through the shoes of the wire placer said member being supported by the shaft of the first of a series oi.' armatures to be wound, the wire anchoring means for the windings of a succeeding armature being provided initially by the end leads of windings of the preceding armature which are severed, after the partial application of windings of a succeeding armature.

2. A machine according to claim 1 in which each chuck comprises a tubular shaft having a split portion with which a clamp screw cooperates to tighten it around the armature shaft, in which each bearing bracket includes a portion fixed to the shuttle and a cap portion attached to the iixed portion and movable relative thereto to y each bracket is hingedly connected with the shuttle so that, while one bracket supports an armature in position for winding, the other bracket can be located for facile removal of a wound armature.

4. A machine according to claim l in which the means which limits shuttle movement to either of two winding ranges comprises a member movable with t-he shuttle, four spaced stop bars between two of which said member can move when one core is being wound and between the other two oi' which said member can move when the other core is being wound, and a shai't which supports the bars and which is turned to retract the bars from the path o! movement of said member to permit movement of said member trom the range between one set of bars into the range between the other set of bars.

5. A machine for winding wires into slots of armature cores comprising a tlxed wire placer having a plurality o! shoes arranged in a circular row and each adapted to be received by a core slot and each having a passage receiving wires from supply spools. a shuttleI a chuck rotatably supported by the shuttle for receiving and gripping the armature shaft which supports the core, means for rotating the chuck, means for moving theshuttletopassthe 1- throughtherowof wire placing shoes, two s located on opposite sides oi' said shoes and ncentric therewith and rotatably supported ,f e placer. wire retaining shoes supported by each ring in a circular row concentric with the wire placing shoes and each adapted to be received by a core slot, and means for so limiting movement oi' the shuttle in either direction that, at the end of a shuttle movement. arowofwireretainingshoesremainsintheend portions of core slots, said shoes rotating with the core when turned preparatory to the next movement of the shuttle.

EDWARD W. COLLINS.

REFERENCES CITED UNITED STATES PATENTS Name Date Hunsdori' Aug. 7, 1945 Number 

